Elizabeth Warren up with her first TV ad

Responding to an attack ad by the Karl Rove-backed group Crossroads GPS that targets her, Massachusetts Senate candidate Elizabeth Warren (D) is airing her first TV ad.

And the 60-second ad is a bio spot: “For years, I worked to expose how Wall Street and the big banks are crushing middle-class families," Warren says in it. "It just isn’t right. I stood up to the big banks and their army of Washington lobbyists. I worked to hold them accountable. I led the fight for a new agency to protect consumers -- and we got it. But Washington is still rigged for the big guys. And that’s got to change.”